The World's Greatest Military Spies And Secret Service Agents (1917) : Kessinger Publishing : 9781104924898 : 1104924897 : 10 Aug 2009 : The World's Greatest Military Spies And Secret Service Agents is a book written by George Barton and first published in 1917. The book provides a comprehensive account of some of the most remarkable spies and secret service agents in history, who played a crucial role in shaping the outcome of wars and conflicts around the world. The book covers the stories of spies and agents from various countries and time periods, including ancient Rome, the American Civil War, World War I, and more. The author provides detailed descriptions of their missions, methods, and the risks they took to gather intelligence and protect their countries.Readers will learn about the exploits of famous spies such as Mata Hari, Sidney Reilly, and Richard Sorge, as well as lesser-known but equally fascinating figures such as Harriet Tubman and Belle Boyd. The book also includes s